title: Agglomeration response of nanoparticles in magnetic fluid via monitoring of light transmission.
abstract: We systemically investigate the chain formation speed in magnetic fluid (MF) at various volume fractions, temperatures, and magnetic fields. Experiments are carried out on a water-based Fe(3)O(4) MF to investigate the agglomeration response of the nanoparticles under an applied magnetic field. The transmission of light is monitored to determine the response time undergoing a squared pulsed external magnetic field. The results reveal that enhancement of the response performance of photonic devices based on MF can be realized by properly adjusting the physical parameters, which are essential for both the physics of chain formation and practical applications.
authors.affiliation: Department of Physics, the State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Zou
authors.forename: Ziyun
authors.initials: Z
authors.lastname: Di
authors.forename: Xianfeng
authors.initials: X
authors.lastname: Chen